I am confident.

Actors forty years into a career still stand in the wings feeling sick. They have simply stopped treating that feeling as information about whether they can do the job.

Nerves and incapacity get filed together early in life, usually by an adult who told you to calm down. They're separate: one is a body preparing, the other feels quite different, flat rather than electric. A quiet stomach was never the qualification. Walking on with the stomach you've got is the whole of it.